#include<stdio.h>
#include<stdlib.h>
#define len(array) sizeof(array)/sizeof(*array)

int main(){
    int num[10];
    for(int i=0; i<len(num); i++){
        num[i] = i;
    }

    printf("%d\n", num);
    printf("%d\n", sizeof(num));
    printf("%d\n", num[0]);
    printf("%d\n", *num);
    printf("%d\n", rand()%100);
    return 0;
}